package com.zretc.util;

import com.zretc.entity.User;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @author: bLUeSuMMerDreamer
 * @createTime: 2020-07-27 12:08
 */
public class BaiDuFace {
    private static String addUserUrl = "https://aip.baidubce.com/rest/2.0/face/v3/faceset/user/add";
    private static String accessTokenUrl = "https://aip.baidubce.com/oauth/2.0/token?";

    /**
     * 向云库添加人脸数据
     *
     * @param :imagerurl
     * @author: bLUeSuMMerDreamer
     * @date: 2020/7/27 12:09
     * @return: java.lang.String
     */
    public static String add(String Base64, User user) {
        try {
            Map<String, Object> map = new HashMap<>();
            map.put("image", Base64);
            map.put("group_id", "user_group");
            map.put("user_id", user.getUserId());
            map.put("user_name", user.getUserName());
            map.put("liveness_control", "NORMAL");
            map.put("image_type", "BASE64");
            map.put("quality_control", "NORMAL");
            String param = GsonUtils.toJson(map);

            // 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
            String accessToken = "24.f294c4cfcdc22f35a4f76206bcebf62c.2592000.1597903589.282335-21504756";

            String result = HttpUtil.post(addUserUrl, accessToken, "application/json", param);

            //System.out.println(result);
            return result;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 搜索人脸
     *
     * @param :imageUrl
     * @author: bLUeSuMMerDreamer
     * @date: 2020/7/27 12:21
     * @return: java.lang.String
     */
    public static String faceSearch(String Base64) {
        // 请求url
        String url = "https://aip.baidubce.com/rest/2.0/face/v3/search";
        //File image = new File(imageUrl);
        //ByteArrayOutputStream out = new ByteArrayOutputStream();
        //String Base64 = null;
        //try {
        //    BufferedImage img = ImageIO.read(image);
        //    ImageIO.write(img, "jpg", out);
        //    byte[] bytes = out.toByteArray();
        //    Base64 = Base64Util.encode(bytes);
        //} catch (IOException e1) {
        //    e1.printStackTrace();
        //}
        try {
            Map<String, Object> map = new HashMap<>();
            map.put("image", Base64);
            map.put("liveness_control", "NORMAL");
            map.put("group_id_list", "user_group");
            map.put("image_type", "BASE64");
            map.put("quality_control", "NORMAL");
            String param = GsonUtils.toJson(map);
            // 注意这里仅为了简化编码每一次请求都去获取access_token，线上环境access_token有过期时间， 客户端可自行缓存，过期后重新获取。
            String accessToken = "24.f294c4cfcdc22f35a4f76206bcebf62c.2592000.1597903589.282335-21504756";
            //String accessToken= getAuth();
            String result = HttpUtil.post(url, accessToken, "application/json", param);
            return result;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 拿到access_token
     *
     * @author: bLUeSuMMerDreamer
     * @date: 2020/7/27 12:31
     * @return: java.lang.String
     */
    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的
        String clientId = "rbBDPE4GPCoUtm6QlfZ0utGT";
        // 官网获取的 Secret Key 更新为你注册的
        String clientSecret = "WDrp3XkbxeIT8aDpiKGZiyrElzK9EVkE";
        return getAuth(clientId, clientSecret);
    }

    /**
     * 获取API访问token
     * 该token有一定的有效期，需要自行管理，当失效时需重新获取.
     *
     * @param ak - 百度云官网获取的 API Key
     * @param sk - 百度云官网获取的 Securet Key
     * @return assess_token 示例：
     * "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    public static String getAuth(String ak, String sk) {
        // 获取token地址
        String newAccessTokenUrl = accessTokenUrl
                // 1. grant_type为固定参数
                + "grant_type=client_credentials"
                // 2. 官网获取的 API Key
                + "&client_id=" + ak
                // 3. 官网获取的 Secret Key
                + "&client_secret=" + sk;
        try {
            URL realUrl = new URL(newAccessTokenUrl);
            // 打开和URL之间的连接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String result = "";
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = new JSONObject(result);
            String access_token = jsonObject.getString("access_token");
            return access_token;
        } catch (Exception e) {
            System.err.printf("获取token失败！");
            e.printStackTrace(System.err);
        }
        return null;
    }
}
